Sensitivity of neutrino mass experiments to the cosmic neutrino background
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Kaboth-2010-Sensitivity of neutr.pdf
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Author(s)
Kaboth, Asher Cunningham
Formaggio, Joseph A
Monreal, Benjamin, 1977-
Date Issued
September 2010
Journal
Physical Review D
Publisher
American Physical Society
Citation
Kaboth, A., J. A. Formaggio, and B. Monreal. “Sensitivity of neutrino mass experiments to the cosmic neutrino background.” Physical Review D 82.6 (2010): 062001. © 2010 The American Physical Society.
Version
Final published version
Abstract
The KATRIN neutrino experiment is a next-generation tritium beta decay experiment aimed at measuring the mass of the electron neutrino to better than 200 meV at 90% C.L. Because of its intense tritium source, KATRIN can also serve as a possible target for the process of neutrino capture, νe+[superscript H-->[superscript 3]He++e-. The latter process, possessing no energy threshold, is sensitive to the cosmic neutrino background (CνB). In this paper, we explore the potential sensitivity of the KATRIN experiment to the relic neutrino density. The KATRIN experiment is sensitive to a CνB overdensity ratio of 2.0×10[superscript 9] over standard concordance model predictions (at 90% C.L.), addressing the validity of certain speculative cosmological models.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.82.062001
